146121455 has 4 divisors (see below), whose sum is σ = 175345752. Its totient is φ = 116897160.

The previous prime is 146121431. The next prime is 146121463. The reversal of 146121455 is 554121641.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 146121455 - 2¹² = 146117359 is a prime.

It is a super-2 number, since 2×146121455² = 42702959222634050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14612141 + ... + 14612150.

It is an arithmetic number, because the mean of its divisors is an integer number (43836438).

Almost surely, 2^146121455 is an apocalyptic number.

146121455 is a deficient number, since it is larger than the sum of its proper divisors (29224297).

146121455 is an equidigital number, since it uses as much as digits as its factorization.

146121455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29224296.

The product of its digits is 4800, while the sum is 29.

The square root of 146121455 is about 12088.0707724599. The cubic root of 146121455 is about 526.7097155878.

The spelling of 146121455 in words is "one hundred forty-six million, one hundred twenty-one thousand, four hundred fifty-five".