1054738191 has 16 divisors (see below), whose sum is σ = 1603584864. Its totient is φ = 610888704.

The previous prime is 1054738183. The next prime is 1054738211. The reversal of 1054738191 is 1918374501.

It is not a de Polignac number, because 1054738191 - 2³ = 1054738183 is a prime.

It is a super-2 number, since 2×1054738191² = 2224945303107904962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054738691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794766 + ... + 796091.

It is an arithmetic number, because the mean of its divisors is an integer number (100224054).

Almost surely, 2^1054738191 is an apocalyptic number.

1054738191 is a deficient number, since it is larger than the sum of its proper divisors (548846673).

1054738191 is a wasteful number, since it uses less digits than its factorization.

1054738191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590890.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 1054738191 is about 32476.7330715391. The cubic root of 1054738191 is about 1017.9229137003.

The spelling of 1054738191 in words is "one billion, fifty-four million, seven hundred thirty-eight thousand, one hundred ninety-one".