145113451 has 6 divisors (see below), whose sum is σ = 168805500. Its totient is φ = 124382916.

The previous prime is 145113443. The next prime is 145113457. The reversal of 145113451 is 154311541.

It is not a de Polignac number, because 145113451 - 2³ = 145113443 is a prime.

It is a super-2 number, since 2×145113451² = 42115827322258802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145113457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1480701 + ... + 1480798.

It is an arithmetic number, because the mean of its divisors is an integer number (28134250).

Almost surely, 2^145113451 is an apocalyptic number.

145113451 is a deficient number, since it is larger than the sum of its proper divisors (23692049).

145113451 is an equidigital number, since it uses as much as digits as its factorization.

145113451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961513 (or 2961506 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 145113451 is about 12046.3044540639. The cubic root of 145113451 is about 525.4957687247.

Adding to 145113451 its reverse (154311541), we get a palindrome (299424992).

The spelling of 145113451 in words is "one hundred forty-five million, one hundred thirteen thousand, four hundred fifty-one".