102277442 has 8 divisors (see below), whose sum is σ = 153719100. Its totient is φ = 51037744.

The previous prime is 102277393. The next prime is 102277471. The reversal of 102277442 is 244772201.

It can be written as a sum of positive squares in 2 ways, for example, as 86508601 + 15768841 = 9301^2 + 3971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49217 + ... + 51252.

Almost surely, 2^102277442 is an apocalyptic number.

102277442 is a deficient number, since it is larger than the sum of its proper divisors (51441658).

102277442 is a wasteful number, since it uses less digits than its factorization.

102277442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100980.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 102277442 is about 10113.2310366173. The cubic root of 102277442 is about 467.6561168483.

The spelling of 102277442 in words is "one hundred two million, two hundred seventy-seven thousand, four hundred forty-two".