145511929 has 4 divisors (see below), whose sum is σ = 145578384. Its totient is φ = 145445476.

The previous prime is 145511921. The next prime is 145511963. The reversal of 145511929 is 929115541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 929115541 = 281 ⋅3306461.

It is a cyclic number.

It is not a de Polignac number, because 145511929 - 2³ = 145511921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145511921) 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, 29827 + ... + 34360.

It is an arithmetic number, because the mean of its divisors is an integer number (36394596).

Almost surely, 2^145511929 is an apocalyptic number.

It is an amenable number.

145511929 is a deficient number, since it is larger than the sum of its proper divisors (66455).

145511929 is an equidigital number, since it uses as much as digits as its factorization.

145511929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66454.

The product of its digits is 16200, while the sum is 37.

The square root of 145511929 is about 12062.8325446389. The cubic root of 145511929 is about 525.9763286489.

The spelling of 145511929 in words is "one hundred forty-five million, five hundred eleven thousand, nine hundred twenty-nine".