145622057 has 8 divisors (see below), whose sum is σ = 166507200. Its totient is φ = 124757424.

The previous prime is 145622003. The next prime is 145622069. The reversal of 145622057 is 750226541.

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 145622057 - 2¹⁸ = 145359913 is a prime.

It is a super-2 number, since 2×145622057² = 42411566969822498, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (145622077) 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, 15794 + ... + 23252.

It is an arithmetic number, because the mean of its divisors is an integer number (20813400).

Almost surely, 2^145622057 is an apocalyptic number.

It is an amenable number.

145622057 is a deficient number, since it is larger than the sum of its proper divisors (20885143).

145622057 is an equidigital number, since it uses as much as digits as its factorization.

145622057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10255.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 145622057 is about 12067.3964466243. The cubic root of 145622057 is about 526.1089869920.

Adding to 145622057 its reverse (750226541), we get a palindrome (895848598).

The spelling of 145622057 in words is "one hundred forty-five million, six hundred twenty-two thousand, fifty-seven".