139046545 has 24 divisors (see below), whose sum is σ = 184242240. Its totient is φ = 100663200.

The previous prime is 139046543. The next prime is 139046549. The reversal of 139046545 is 545640931.

It is not a de Polignac number, because 139046545 - 2¹ = 139046543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139046543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187786 + ... + 188524.

It is an arithmetic number, because the mean of its divisors is an integer number (7676760).

Almost surely, 2^139046545 is an apocalyptic number.

It is an amenable number.

139046545 is a deficient number, since it is larger than the sum of its proper divisors (45195695).

139046545 is a wasteful number, since it uses less digits than its factorization.

139046545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 139046545 is about 11791.7999050187. The cubic root of 139046545 is about 518.0679599073.

It can be divided in two parts, 13904 and 6545, that added together give a square (20449 = 143²).

The spelling of 139046545 in words is "one hundred thirty-nine million, forty-six thousand, five hundred forty-five".