139514428 has 6 divisors (see below), whose sum is σ = 244150256. Its totient is φ = 69757212.

The previous prime is 139514423. The next prime is 139514437. The reversal of 139514428 is 824415931.

It is a super-4 number, since 4×139514428⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139514423) 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 as a sum of consecutive naturals, namely, 17439300 + ... + 17439307.

Almost surely, 2^139514428 is an apocalyptic number.

It is an amenable number.

139514428 is a deficient number, since it is larger than the sum of its proper divisors (104635828).

139514428 is a wasteful number, since it uses less digits than its factorization.

139514428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34878611 (or 34878609 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 139514428 is about 11811.6225811698. The cubic root of 139514428 is about 518.6483981982.

The spelling of 139514428 in words is "one hundred thirty-nine million, five hundred fourteen thousand, four hundred twenty-eight".