97578142 has 16 divisors (see below), whose sum is σ = 151380864. Its totient is φ = 47124000.

The previous prime is 97578133. The next prime is 97578149. The reversal of 97578142 is 24187579.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97578149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39792 + ... + 42172.

It is an arithmetic number, because the mean of its divisors is an integer number (9461304).

Almost surely, 2^97578142 is an apocalyptic number.

97578142 is a deficient number, since it is larger than the sum of its proper divisors (53802722).

97578142 is a wasteful number, since it uses less digits than its factorization.

97578142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075.

The product of its digits is 141120, while the sum is 43.

The square root of 97578142 is about 9878.1649105489. The cubic root of 97578142 is about 460.3811302544.

It can be divided in two parts, 9757814 and 2, that multiplied together give a triangular number (19515628 = T₆₂₄₇).

The spelling of 97578142 in words is "ninety-seven million, five hundred seventy-eight thousand, one hundred forty-two".