145245136 has 10 divisors (see below), whose sum is σ = 281412482. Its totient is φ = 72622560.

The previous prime is 145245119. The next prime is 145245143. The reversal of 145245136 is 631542541.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115433536 + 29811600 = 10744^2 + 5460^2 .

It is a super-2 number, since 2×145245136² = 42192299063316992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145245098 and 145245107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4538895 + ... + 4538926.

Almost surely, 2^145245136 is an apocalyptic number.

145245136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145245136 is a deficient number, since it is larger than the sum of its proper divisors (136167346).

145245136 is an equidigital number, since it uses as much as digits as its factorization.

145245136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077829 (or 9077823 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 145245136 is about 12051.7689987819. The cubic root of 145245136 is about 525.6546765499.

Adding to 145245136 its reverse (631542541), we get a palindrome (776787677).

The spelling of 145245136 in words is "one hundred forty-five million, two hundred forty-five thousand, one hundred thirty-six".