148940638 has 32 divisors (see below), whose sum is σ = 294928128. Its totient is φ = 54614400.

The previous prime is 148940611. The next prime is 148940641. The reversal of 148940638 is 836049841.

148940638 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×148940638³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 148940594 and 148940603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25828 + ... + 31063.

It is an arithmetic number, because the mean of its divisors is an integer number (9216504).

Almost surely, 2^148940638 is an apocalyptic number.

148940638 is a deficient number, since it is larger than the sum of its proper divisors (145987490).

148940638 is a wasteful number, since it uses less digits than its factorization.

148940638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56928.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 148940638 is about 12204.1238112369. The cubic root of 148940638 is about 530.0755060338.

The spelling of 148940638 in words is "one hundred forty-eight million, nine hundred forty thousand, six hundred thirty-eight".