139545351 has 12 divisors (see below), whose sum is σ = 219889800. Its totient is φ = 84572880.

The previous prime is 139545349. The next prime is 139545403. The reversal of 139545351 is 153545931.

It is a happy number.

It is not a de Polignac number, because 139545351 - 2¹ = 139545349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139545311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 704676 + ... + 704873.

It is an arithmetic number, because the mean of its divisors is an integer number (18324150).

Almost surely, 2^139545351 is an apocalyptic number.

139545351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

139545351 is a deficient number, since it is larger than the sum of its proper divisors (80344449).

139545351 is a wasteful number, since it uses less digits than its factorization.

139545351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409566 (or 1409563 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 139545351 is about 11812.9315159278. The cubic root of 139545351 is about 518.6867143777.

It can be divided in two parts, 139 and 545351, that added together give a triangular number (545490 = T₁₀₄₄).

The spelling of 139545351 in words is "one hundred thirty-nine million, five hundred forty-five thousand, three hundred fifty-one".