145569137 has 8 divisors (see below), whose sum is σ = 170861376. Its totient is φ = 121401072.

The previous prime is 145569133. The next prime is 145569143. The reversal of 145569137 is 731965541.

145569137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145569137 - 2² = 145569133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145569094 and 145569103.

It is not an unprimeable number, because it can be changed into a prime (145569131) 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, 280763 + ... + 281280.

It is an arithmetic number, because the mean of its divisors is an integer number (21357672).

Almost surely, 2^145569137 is an apocalyptic number.

It is an amenable number.

145569137 is a deficient number, since it is larger than the sum of its proper divisors (25292239).

145569137 is an equidigital number, since it uses as much as digits as its factorization.

145569137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562087.

The product of its digits is 113400, while the sum is 41.

The square root of 145569137 is about 12065.2035623109. The cubic root of 145569137 is about 526.0452487977.

The spelling of 145569137 in words is "one hundred forty-five million, five hundred sixty-nine thousand, one hundred thirty-seven".