139542355 has 8 divisors (see below), whose sum is σ = 171976752. Its totient is φ = 108616608.

The previous prime is 139542349. The next prime is 139542371. The reversal of 139542355 is 553245931.

139542355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139542355 - 2⁵ = 139542323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376957 + ... + 377326.

It is an arithmetic number, because the mean of its divisors is an integer number (21497094).

Almost surely, 2^139542355 is an apocalyptic number.

139542355 is a deficient number, since it is larger than the sum of its proper divisors (32434397).

139542355 is an equidigital number, since it uses as much as digits as its factorization.

139542355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754325.

The product of its digits is 81000, while the sum is 37.

The square root of 139542355 is about 11812.8047050648. The cubic root of 139542355 is about 518.6830023312.

The spelling of 139542355 in words is "one hundred thirty-nine million, five hundred forty-two thousand, three hundred fifty-five".