102372394 has 4 divisors (see below), whose sum is σ = 153558594. Its totient is φ = 51186196.

The previous prime is 102372383. The next prime is 102372397. The reversal of 102372394 is 493273201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493273201 = 1879 ⋅262519.

It can be written as a sum of positive squares in only one way, i.e., 68674369 + 33698025 = 8287^2 + 5805^2 .

It is not an unprimeable number, because it can be changed into a prime (102372397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25593097 + ... + 25593100.

Almost surely, 2^102372394 is an apocalyptic number.

102372394 is a deficient number, since it is larger than the sum of its proper divisors (51186200).

102372394 is an equidigital number, since it uses as much as digits as its factorization.

102372394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51186199.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 102372394 is about 10117.9243918899. The cubic root of 102372394 is about 467.8007924429.

The spelling of 102372394 in words is "one hundred two million, three hundred seventy-two thousand, three hundred ninety-four".