146421556 has 12 divisors (see below), whose sum is σ = 264503680. Its totient is φ = 70849080.

The previous prime is 146421547. The next prime is 146421557. The reversal of 146421556 is 655124641.

146421556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×146421556² = 42878544122922272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146421557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590286 + ... + 590533.

Almost surely, 2^146421556 is an apocalyptic number.

It is an amenable number.

146421556 is a deficient number, since it is larger than the sum of its proper divisors (118082124).

146421556 is a wasteful number, since it uses less digits than its factorization.

146421556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180854 (or 1180852 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 146421556 is about 12100.4775112390. The cubic root of 146421556 is about 527.0700505907.

The spelling of 146421556 in words is "one hundred forty-six million, four hundred twenty-one thousand, five hundred fifty-six".