145153261 has 8 divisors (see below), whose sum is σ = 159918048. Its totient is φ = 130650000.

The previous prime is 145153231. The next prime is 145153279. The reversal of 145153261 is 162351541.

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 145153261 - 2¹⁹ = 144628973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145153201) 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, 64215 + ... + 66436.

It is an arithmetic number, because the mean of its divisors is an integer number (19989756).

Almost surely, 2^145153261 is an apocalyptic number.

145153261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145153261 is a deficient number, since it is larger than the sum of its proper divisors (14764787).

145153261 is a wasteful number, since it uses less digits than its factorization.

145153261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130763.

The product of its digits is 3600, while the sum is 28.

The square root of 145153261 is about 12047.9567147297. The cubic root of 145153261 is about 525.5438186554.

The spelling of 145153261 in words is "one hundred forty-five million, one hundred fifty-three thousand, two hundred sixty-one".