102621374 has 4 divisors (see below), whose sum is σ = 153932064. Its totient is φ = 51310686.

The previous prime is 102621371. The next prime is 102621383. The reversal of 102621374 is 473126201.

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

It is a super-2 number, since 2×102621374² = 21062292803295752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102621371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25655342 + ... + 25655345.

It is an arithmetic number, because the mean of its divisors is an integer number (38483016).

Almost surely, 2^102621374 is an apocalyptic number.

102621374 is a deficient number, since it is larger than the sum of its proper divisors (51310690).

102621374 is an equidigital number, since it uses as much as digits as its factorization.

102621374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51310689.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 102621374 is about 10130.2208268132. The cubic root of 102621374 is about 468.1797316582.

Adding to 102621374 its reverse (473126201), we get a palindrome (575747575).

The spelling of 102621374 in words is "one hundred two million, six hundred twenty-one thousand, three hundred seventy-four".