146631649 has 8 divisors (see below), whose sum is σ = 147476000. Its totient is φ = 145790496.

The previous prime is 146631619. The next prime is 146631673. The reversal of 146631649 is 946136641.

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

It is a cyclic number.

It is not a de Polignac number, because 146631649 - 2¹³ = 146623457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146631619) 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, 227722 + ... + 228364.

It is an arithmetic number, because the mean of its divisors is an integer number (18434500).

Almost surely, 2^146631649 is an apocalyptic number.

It is an amenable number.

146631649 is a deficient number, since it is larger than the sum of its proper divisors (844351).

146631649 is an equidigital number, since it uses as much as digits as its factorization.

146631649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its digits is 93312, while the sum is 40.

The square root of 146631649 is about 12109.1555857541. The cubic root of 146631649 is about 527.3220189740.

The spelling of 146631649 in words is "one hundred forty-six million, six hundred thirty-one thousand, six hundred forty-nine".