139975416 has 216 divisors, whose sum is σ = 475567560. Its totient is φ = 36426240.

The previous prime is 139975411. The next prime is 139975417. The reversal of 139975416 is 614579931.

139975416 is a `hidden beast` number, since 13 + 9 + 97 + 541 + 6 = 666.

Its product of digits (204120) is a multiple of the sum of its prime divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139975411) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 4515321 + ... + 4515351.

Almost surely, 2^139975416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139975416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237783780).

139975416 is an abundant number, since it is smaller than the sum of its proper divisors (335592144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139975416 is a wasteful number, since it uses less digits than its factorization.

139975416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 60 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 139975416 is about 11831.1206569792. The cubic root of 139975416 is about 519.2190150071.

The spelling of 139975416 in words is "one hundred thirty-nine million, nine hundred seventy-five thousand, four hundred sixteen".