102291422 has 4 divisors (see below), whose sum is σ = 153437136. Its totient is φ = 51145710.

The previous prime is 102291407. The next prime is 102291437. The reversal of 102291422 is 224192201.

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

It is an interprime number because it is at equal distance from previous prime (102291407) and next prime (102291437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25572854 + ... + 25572857.

It is an arithmetic number, because the mean of its divisors is an integer number (38359284).

Almost surely, 2^102291422 is an apocalyptic number.

102291422 is a deficient number, since it is larger than the sum of its proper divisors (51145714).

102291422 is an equidigital number, since it uses as much as digits as its factorization.

102291422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51145713.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 102291422 is about 10113.9221867681. The cubic root of 102291422 is about 467.6774233865.

The spelling of 102291422 in words is "one hundred two million, two hundred ninety-one thousand, four hundred twenty-two".