145934251 has 8 divisors (see below), whose sum is σ = 148547520. Its totient is φ = 143340288.

The previous prime is 145934249. The next prime is 145934297. The reversal of 145934251 is 152439541.

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 145934251 - 2¹ = 145934249 is a prime.

It is a super-2 number, since 2×145934251² = 42593611229862002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145934051) 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, 10875 + ... + 20251.

It is an arithmetic number, because the mean of its divisors is an integer number (18568440).

Almost surely, 2^145934251 is an apocalyptic number.

145934251 is a deficient number, since it is larger than the sum of its proper divisors (2613269).

145934251 is an equidigital number, since it uses as much as digits as its factorization.

145934251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653.

The product of its digits is 21600, while the sum is 34.

The square root of 145934251 is about 12080.3249542386. The cubic root of 145934251 is about 526.4846874796.

The spelling of 145934251 in words is "one hundred forty-five million, nine hundred thirty-four thousand, two hundred fifty-one".