102949894 has 4 divisors (see below), whose sum is σ = 154424844. Its totient is φ = 51474946.

The previous prime is 102949849. The next prime is 102949907. The reversal of 102949894 is 498949201.

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

It is a super-2 number, since 2×102949894² = 21197361349222472, which contains 22 as substring.

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, 25737472 + ... + 25737475.

It is an arithmetic number, because the mean of its divisors is an integer number (38606211).

Almost surely, 2^102949894 is an apocalyptic number.

102949894 is a deficient number, since it is larger than the sum of its proper divisors (51474950).

102949894 is an equidigital number, since it uses as much as digits as its factorization.

102949894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51474949.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 102949894 is about 10146.4227193627. The cubic root of 102949894 is about 468.6787913401.

The spelling of 102949894 in words is "one hundred two million, nine hundred forty-nine thousand, eight hundred ninety-four".