97149442 has 16 divisors (see below), whose sum is σ = 159147072. Its totient is φ = 44205840.

The previous prime is 97149439. The next prime is 97149461. The reversal of 97149442 is 24494179.

It is a super-2 number, since 2×97149442² = 18876028161822728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97149395 and 97149404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24468 + ... + 28159.

It is an arithmetic number, because the mean of its divisors is an integer number (9946692).

Almost surely, 2^97149442 is an apocalyptic number.

97149442 is a deficient number, since it is larger than the sum of its proper divisors (61997630).

97149442 is a wasteful number, since it uses less digits than its factorization.

97149442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52713.

The product of its digits is 72576, while the sum is 40.

The square root of 97149442 is about 9856.4416500074. The cubic root of 97149442 is about 459.7059273548.

The spelling of 97149442 in words is "ninety-seven million, one hundred forty-nine thousand, four hundred forty-two".