146900391 has 8 divisors (see below), whose sum is σ = 213673344. Its totient is φ = 89030520.

The previous prime is 146900371. The next prime is 146900393. The reversal of 146900391 is 193009641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146900391 - 2¹³ = 146892199 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4451527 = 146900391 / (1 + 4 + 6 + 9 + 0 + 0 + 3 + 9 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146900393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2225731 + ... + 2225796.

It is an arithmetic number, because the mean of its divisors is an integer number (26709168).

Almost surely, 2^146900391 is an apocalyptic number.

146900391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

146900391 is a deficient number, since it is larger than the sum of its proper divisors (66772953).

146900391 is a wasteful number, since it uses less digits than its factorization.

146900391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451541.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 146900391 is about 12120.2471509454. The cubic root of 146900391 is about 527.6439755842.

The spelling of 146900391 in words is "one hundred forty-six million, nine hundred thousand, three hundred ninety-one".