145455151 has 4 divisors (see below), whose sum is σ = 151779312. Its totient is φ = 139130992.

The previous prime is 145455137. The next prime is 145455199. The reversal of 145455151 is 151554541.

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

It is a cyclic number.

It is not a de Polignac number, because 145455151 - 2¹¹ = 145453103 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145459151) 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, 3162046 + ... + 3162091.

It is an arithmetic number, because the mean of its divisors is an integer number (37944828).

Almost surely, 2^145455151 is an apocalyptic number.

145455151 is a deficient number, since it is larger than the sum of its proper divisors (6324161).

145455151 is an equidigital number, since it uses as much as digits as its factorization.

145455151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324160.

The product of its digits is 10000, while the sum is 31.

The square root of 145455151 is about 12060.4788876727. The cubic root of 145455151 is about 525.9079086706.

The spelling of 145455151 in words is "one hundred forty-five million, four hundred fifty-five thousand, one hundred fifty-one".