145155401 has 8 divisors (see below), whose sum is σ = 157269024. Its totient is φ = 133439040.

The previous prime is 145155397. The next prime is 145155431. The reversal of 145155401 is 104551541.

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 145155401 - 2² = 145155397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145155431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98555 + ... + 100016.

It is an arithmetic number, because the mean of its divisors is an integer number (19658628).

Almost surely, 2^145155401 is an apocalyptic number.

It is an amenable number.

145155401 is a deficient number, since it is larger than the sum of its proper divisors (12113623).

145155401 is a wasteful number, since it uses less digits than its factorization.

145155401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198631.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 145155401 is about 12048.0455261424. The cubic root of 145155401 is about 525.5464013468.

The spelling of 145155401 in words is "one hundred forty-five million, one hundred fifty-five thousand, four hundred one".