139027455 has 48 divisors (see below), whose sum is σ = 287526240. Its totient is φ = 63552384.

The previous prime is 139027453. The next prime is 139027477. The reversal of 139027455 is 554720931.

It is not a de Polignac number, because 139027455 - 2¹ = 139027453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139027451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3894 + ... + 17123.

It is an arithmetic number, because the mean of its divisors is an integer number (5990130).

Almost surely, 2^139027455 is an apocalyptic number.

139027455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139027455 is an abundant number, since it is smaller than the sum of its proper divisors (148498785).

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

139027455 is a wasteful number, since it uses less digits than its factorization.

139027455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21045 (or 21032 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 139027455 is about 11790.9904164154. The cubic root of 139027455 is about 518.0442499330.

The spelling of 139027455 in words is "one hundred thirty-nine million, twenty-seven thousand, four hundred fifty-five".