148903631 has 2 divisors, whose sum is σ = 148903632. Its totient is φ = 148903630.

The previous prime is 148903619. The next prime is 148903637. The reversal of 148903631 is 136309841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148903631 - 2²⁶ = 81794767 is a prime.

It is a super-2 number, since 2×148903631² = 44344582649968322, which contains 22 as substring.

It is equal to p_8386244 and since 148903631 and 8386244 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 148903591 and 148903600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148903637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74451815 + 74451816.

It is an arithmetic number, because the mean of its divisors is an integer number (74451816).

Almost surely, 2^148903631 is an apocalyptic number.

148903631 is a deficient number, since it is larger than the sum of its proper divisors (1).

148903631 is an equidigital number, since it uses as much as digits as its factorization.

148903631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 148903631 is about 12202.6075492085. The cubic root of 148903631 is about 530.0316001095.

The spelling of 148903631 in words is "one hundred forty-eight million, nine hundred three thousand, six hundred thirty-one".