139169370 has 16 divisors (see below), whose sum is σ = 334006560. Its totient is φ = 37111824.

The previous prime is 139169369. The next prime is 139169399. The reversal of 139169370 is 73961931.

It is a super-2 number, since 2×139169370² = 38736227092393800, 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, 2319460 + ... + 2319519.

It is an arithmetic number, because the mean of its divisors is an integer number (20875410).

Almost surely, 2^139169370 is an apocalyptic number.

139169370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139169370 is an abundant number, since it is smaller than the sum of its proper divisors (194837190).

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

139169370 is a wasteful number, since it uses less digits than its factorization.

139169370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638989.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 139169370 is about 11797.0068237668. The cubic root of 139169370 is about 518.2204579318.

The spelling of 139169370 in words is "one hundred thirty-nine million, one hundred sixty-nine thousand, three hundred seventy".