145054261 has 16 divisors (see below), whose sum is σ = 166095360. Its totient is φ = 125390320.

The previous prime is 145054249. The next prime is 145054277. The reversal of 145054261 is 162450541.

It is not a de Polignac number, because 145054261 - 2¹⁵ = 145021493 is a prime.

It is a super-2 number, since 2×145054261² = 42081477268512242, 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 (145054211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43686 + ... + 46888.

It is an arithmetic number, because the mean of its divisors is an integer number (10380960).

Almost surely, 2^145054261 is an apocalyptic number.

145054261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145054261 is a deficient number, since it is larger than the sum of its proper divisors (21041099).

145054261 is a wasteful number, since it uses less digits than its factorization.

145054261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 145054261 is about 12043.8474334409. The cubic root of 145054261 is about 525.4243112448.

The spelling of 145054261 in words is "one hundred forty-five million, fifty-four thousand, two hundred sixty-one".