139569650 has 24 divisors (see below), whose sum is σ = 283200624. Its totient is φ = 50752400.

The previous prime is 139569631. The next prime is 139569659. The reversal of 139569650 is 56965931.

It is a super-2 number, since 2×139569650² = 38959374402245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139569659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126332 + ... + 127431.

It is an arithmetic number, because the mean of its divisors is an integer number (11800026).

Almost surely, 2^139569650 is an apocalyptic number.

139569650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139569650 is an abundant number, since it is smaller than the sum of its proper divisors (143630974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139569650 is a wasteful number, since it uses less digits than its factorization.

139569650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253786 (or 253781 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 139569650 is about 11813.9599626882. The cubic root of 139569650 is about 518.7168188967.

The spelling of 139569650 in words is "one hundred thirty-nine million, five hundred sixty-nine thousand, six hundred fifty".