102261542 has 16 divisors (see below), whose sum is σ = 160276320. Its totient is φ = 48842112.

The previous prime is 102261521. The next prime is 102261557. The reversal of 102261542 is 245162201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67748 + ... + 69240.

It is an arithmetic number, because the mean of its divisors is an integer number (10017270).

Almost surely, 2^102261542 is an apocalyptic number.

102261542 is a deficient number, since it is larger than the sum of its proper divisors (58014778).

102261542 is a wasteful number, since it uses less digits than its factorization.

102261542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102261542 is about 10112.4449071429. Note that the first 3 decimals coincide. The cubic root of 102261542 is about 467.6318817304.

The spelling of 102261542 in words is "one hundred two million, two hundred sixty-one thousand, five hundred forty-two".