139937545 has 16 divisors (see below), whose sum is σ = 184154112. Its totient is φ = 101237760.

The previous prime is 139937537. The next prime is 139937573. The reversal of 139937545 is 545739931.

It is not a de Polignac number, because 139937545 - 2³ = 139937537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139937495 and 139937504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4024 + ... + 17206.

It is an arithmetic number, because the mean of its divisors is an integer number (11509632).

Almost surely, 2^139937545 is an apocalyptic number.

It is an amenable number.

139937545 is a deficient number, since it is larger than the sum of its proper divisors (44216567).

139937545 is a wasteful number, since it uses less digits than its factorization.

139937545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13392.

The product of its digits is 510300, while the sum is 46.

The square root of 139937545 is about 11829.5200663425. The cubic root of 139937545 is about 519.1721850768.

The spelling of 139937545 in words is "one hundred thirty-nine million, nine hundred thirty-seven thousand, five hundred forty-five".