139913770 has 16 divisors (see below), whose sum is σ = 254442888. Its totient is φ = 55388160.

The previous prime is 139913743. The next prime is 139913801. The reversal of 139913770 is 77319931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116575209 + 23338561 = 10797^2 + 4831^2 .

It is a super-2 number, since 2×139913770² = 39151726071225800, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71151 + ... + 73090.

Almost surely, 2^139913770 is an apocalyptic number.

139913770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139913770 is a deficient number, since it is larger than the sum of its proper divisors (114529118).

139913770 is a wasteful number, since it uses less digits than its factorization.

139913770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144345.

The product of its (nonzero) digits is 35721, while the sum is 40.

The square root of 139913770 is about 11828.5151223643. The cubic root of 139913770 is about 519.1427814411.

The spelling of 139913770 in words is "one hundred thirty-nine million, nine hundred thirteen thousand, seven hundred seventy".