146121221501 has 8 divisors (see below), whose sum is σ = 152478552384. Its totient is φ = 139764243520.

The previous prime is 146121221497. The next prime is 146121221527. The reversal of 146121221501 is 105122121641.

It is a happy number.

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

It is not a de Polignac number, because 146121221501 - 2² = 146121221497 is a prime.

It is a super-2 number, since 2×146121221501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146121221591) 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, 1096586 + ... + 1222596.

It is an arithmetic number, because the mean of its divisors is an integer number (19059819048).

Almost surely, 2^146121221501 is an apocalyptic number.

It is an amenable number.

146121221501 is a deficient number, since it is larger than the sum of its proper divisors (6357330883).

146121221501 is a wasteful number, since it uses less digits than its factorization.

146121221501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176451.

The product of its (nonzero) digits is 960, while the sum is 26.

The spelling of 146121221501 in words is "one hundred forty-six billion, one hundred twenty-one million, two hundred twenty-one thousand, five hundred one".