145345157 has 4 divisors (see below), whose sum is σ = 145476396. Its totient is φ = 145213920.

The previous prime is 145345153. The next prime is 145345169. The reversal of 145345157 is 751543541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62188996 + 83156161 = 7886^2 + 9119^2 .

It is a cyclic number.

It is not a de Polignac number, because 145345157 - 2² = 145345153 is a prime.

It is a super-2 number, since 2×145345157² = 42250429326709298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145345153) 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, 63944 + ... + 66177.

It is an arithmetic number, because the mean of its divisors is an integer number (36369099).

Almost surely, 2^145345157 is an apocalyptic number.

It is an amenable number.

145345157 is a deficient number, since it is larger than the sum of its proper divisors (131239).

145345157 is a wasteful number, since it uses less digits than its factorization.

145345157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131238.

The product of its digits is 42000, while the sum is 35.

The square root of 145345157 is about 12055.9179244054. The cubic root of 145345157 is about 525.7753104056.

Adding to 145345157 its reverse (751543541), we get a palindrome (896888698).

It can be divided in two parts, 14534 and 5157, that added together give a palindrome (19691).

The spelling of 145345157 in words is "one hundred forty-five million, three hundred forty-five thousand, one hundred fifty-seven".