151456742 has 4 divisors (see below), whose sum is σ = 227185116. Its totient is φ = 75728370.

The previous prime is 151456741. The next prime is 151456769. The reversal of 151456742 is 247654151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247654151 = 19 ⋅13034429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151456741) 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, 37864184 + ... + 37864187.

It is an arithmetic number, because the mean of its divisors is an integer number (56796279).

Almost surely, 2^151456742 is an apocalyptic number.

151456742 is a deficient number, since it is larger than the sum of its proper divisors (75728374).

151456742 is an equidigital number, since it uses as much as digits as its factorization.

151456742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75728373.

The product of its digits is 33600, while the sum is 35.

The square root of 151456742 is about 12306.7762635062. The cubic root of 151456742 is about 533.0437679000.

The spelling of 151456742 in words is "one hundred fifty-one million, four hundred fifty-six thousand, seven hundred forty-two".