145002551 has 8 divisors (see below), whose sum is σ = 147633408. Its totient is φ = 142380000.

The previous prime is 145002521. The next prime is 145002563. The reversal of 145002551 is 155200541.

It is a happy number.

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 145002551 - 2²² = 140808247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145002521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41066 + ... + 44456.

It is an arithmetic number, because the mean of its divisors is an integer number (18454176).

Almost surely, 2^145002551 is an apocalyptic number.

145002551 is a deficient number, since it is larger than the sum of its proper divisors (2630857).

145002551 is an equidigital number, since it uses as much as digits as its factorization.

145002551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 145002551 is about 12041.7005028360. The cubic root of 145002551 is about 525.3618681284.

The spelling of 145002551 in words is "one hundred forty-five million, two thousand, five hundred fifty-one".