145319954 has 8 divisors (see below), whose sum is σ = 234747660. Its totient is φ = 67070736.

The previous prime is 145319939. The next prime is 145319959. The reversal of 145319954 is 459913541.

It can be written as a sum of positive squares in 2 ways, for example, as 102718225 + 42601729 = 10135^2 + 6527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145319954² = 42235778061124232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145319959) 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, 2794589 + ... + 2794640.

Almost surely, 2^145319954 is an apocalyptic number.

145319954 is a deficient number, since it is larger than the sum of its proper divisors (89427706).

145319954 is a wasteful number, since it uses less digits than its factorization.

145319954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589244.

The product of its digits is 97200, while the sum is 41.

The square root of 145319954 is about 12054.8726247937. The cubic root of 145319954 is about 525.7449186554.

The spelling of 145319954 in words is "one hundred forty-five million, three hundred nineteen thousand, nine hundred fifty-four".