97152092381 has 4 divisors (see below), whose sum is σ = 97655471292. Its totient is φ = 96648713472.

The previous prime is 97152092377. The next prime is 97152092383. The reversal of 97152092381 is 18329025179.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42555564100 + 54596528281 = 206290^2 + 233659^2 .

It is a cyclic number.

It is not a de Polignac number, because 97152092381 - 2² = 97152092377 is a prime.

It is a super-2 number, since 2×97152092381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97152092383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251689166 + ... + 251689551.

It is an arithmetic number, because the mean of its divisors is an integer number (24413867823).

Almost surely, 2^97152092381 is an apocalyptic number.

It is an amenable number.

97152092381 is a deficient number, since it is larger than the sum of its proper divisors (503378911).

97152092381 is a wasteful number, since it uses less digits than its factorization.

97152092381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503378910.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 97152092381 in words is "ninety-seven billion, one hundred fifty-two million, ninety-two thousand, three hundred eighty-one".