139406148 has 72 divisors (see below), whose sum is σ = 404668992. Its totient is φ = 39638592.

The previous prime is 139406143. The next prime is 139406149. The reversal of 139406148 is 841604931.

139406148 is a `hidden beast` number, since 1 + 39 + 4 + 0 + 614 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (139406143) 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, 55986 + ... + 58422.

Almost surely, 2^139406148 is an apocalyptic number.

139406148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139406148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202334496).

139406148 is an abundant number, since it is smaller than the sum of its proper divisors (265262844).

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

139406148 is a wasteful number, since it uses less digits than its factorization.

139406148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2676 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 139406148 is about 11807.0380705747. The cubic root of 139406148 is about 518.5141855952.

The spelling of 139406148 in words is "one hundred thirty-nine million, four hundred six thousand, one hundred forty-eight".