139192270 has 32 divisors (see below), whose sum is σ = 288888768. Its totient is φ = 47298048.

The previous prime is 139192231. The next prime is 139192279. The reversal of 139192270 is 72291931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139192279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889 + ... + 16708.

It is an arithmetic number, because the mean of its divisors is an integer number (9027774).

Almost surely, 2^139192270 is an apocalyptic number.

139192270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139192270 is an abundant number, since it is smaller than the sum of its proper divisors (149696498).

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

139192270 is a wasteful number, since it uses less digits than its factorization.

139192270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17724.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 139192270 is about 11797.9773690239. The cubic root of 139192270 is about 518.2488803680.

The spelling of 139192270 in words is "one hundred thirty-nine million, one hundred ninety-two thousand, two hundred seventy".